Towel bar



FIG. 1 is a perspective view of the claimed design for a towel bar;

FIG. 2 is a front view of the design of FIG. 1;

FIG. 3 is a rear view of the design of FIG. 1;

FIG. 4 is a side view of the design of FIG. 1;

FIG. 5 is another side view of the design of FIG. 1;

FIG. 6 is a top view of the design of FIG. 1; and,

FIG. 7 is a bottom view of the design of FIG. 1.

The broken lines in the drawings illustrate portions of the towel bar which form no part of the claimed design. The towel bar is shown with a symbolic break in its length. The appearance of any portion of the article between the break lines forms no part of the claim design. 

CLAIM I claim the ornamental design for a towel bar, as shown and described. 